Mine is a pseudonym in the sense that it is not my legal name, but it's a bit more than just a pseudonym. It's the name I use everywhere except professional and administrative context. I have no emotional link to my birth name due to it being ugly (imo), not fitting, and too gendered. Plus, my family always used nicknames for me, my spouse use my second name... my legal name is just a burden without redeeming qualities 
I'm may eventually change my legal name to Vothn. And probably take another name to write to keep more freedom (mostly from professional life).